Duana Rainey
Hyattsville,MD
Summary
Results-driven Accounting Professional with extensive experience in government contracting, including Accounts Receivable (A/R), Accounts Payable (A/P), Contract and Project billing, and B2B collections. Proven expertise in managing T&M, FFP, CPFF, CPIF, and CPAF contracts, ensuring compliance with FAR, DFARS, and DCAA regulations. Skilled in ERP systems including Deltek Costpoint, Unanet, SAP, and Oracle, with a strong record of invoice processing, revenue recognition, reconciliations, unapplied cash resolution, and Accounts Receivable aging management. Adept at collaborating with Project Managers, Contracts, Finance, and clients to optimize billing cycles, improve cash flow, reduce DSO, and maintain audit-ready documentation. Experienced in analyzing financial data, resolving discrepancies, and supporting fiscal year-end and contract closeouts.
Overview
22
22
years of professional experience
Work History
Accounts Receivable Billing Analyst II
Cybercore Technologies
Elkridge, MD
03.2021 - 01.2026
- Led FFP and T&M billing for U.S. Government agencies and prime contractors in compliance with FAR, DFARS, and contract terms.
- Prepared and reviewed high-volume government and commercial invoices, including dropships, sales order, standard, and project-based billing.
- Monitored open billing detail, unbilled receivables, and AR sub-ledger balances to ensure accuracy and completeness.
- Executed account reconciliations, variance analysis, and aging reviews to support accurate financial reporting.
- Resolved aging receivables, disputed invoices, and unapplied balances, reducing DSO and improving cash flow.
- Partnered with Contracts, Project Management, Finance, and Accounting to ensure billing accuracy, compliance, and timely revenue recognition.
- Supported month-end and year-end close, including AR reconciliations, accruals, journal entries, and audit schedules.
- Proactively managed collections and follow-ups with government agencies, prime contractors, and internal program, contracts, and finance teams.
- Analyzed billing discrepancies to ensure accuracy and maintain compliance with financial regulations.
- Developed and implemented process improvements to enhance billing efficiency and reduce errors.
- Utilized multiple ERP systems including to manage end-to-end billing and accounts receivable functions.
- Audited and corrected billing and posting documents for accuracy.
- Maintained up-to-date knowledge of industry regulations, ensuring compliance in all aspects of the billing process.
- Researched portals issues related to non-payment within e-billing vendor portals.
- Maintained accurate records of customer payments.
Project Billing Accountant
Pacific and Architect Engineers (PAE)
Falls Church, VA
10.2019 - 03.2021
- Supported fiscal year, period, and contract closeout activities for U.S. Government contracts, including preparation, submission, and tracking of contract closeout requests.
- Utilized ERP and CRM systems to manage billing, accounts receivable, and closeout processes as well as to gather, validate, and analyze billing, revenue, cost, and A/R data to support closeout and financial reporting.
- Identified and implemented process improvements to reduce unbilled receivables, unapplied cash, and closeout cycle time.
- Managed billing processes to ensure timely invoicing and collections.
- Maintained audit-ready documentation to support DCAA, internal, and external audits.
- Supported month-end, quarter-end, and fiscal year-end close, including A/R reconciliations, accruals, journal entries, and variance analysis.
- Managed billing processes to ensure timely invoicing and collections.
- Monitored open billing detail, A/R sub-ledger balances, contract funding, CLIN status, and billing milestones.
- Prepared and maintained closeout metrics, reports, and dashboards, tracking unbilled A/R, unapplied cash, invoice status, and aging trends.
- Partnered with Contracts, Project Management, Finance, Accounting, and Treasury to resolve billing and closeout issues.
- Ensured compliance with FAR, DFARS, contract terms, and internal controls throughout the billing and closeout lifecycle.
- Collaborated with Project Managers to align billing with contract terms and deliverables.
- Participated in process improvement initiatives, sharing insights from daily tasks to contribute to overall company growth and success.
- Analyzed aging reports regularly to identify trends in overdue payments and recommend appropriate action steps to improve collection rates.
Contract and Project Billing Analyst
Gryphon Technologies
Washington, DC
01.2019 - 10.2019
- Supported fiscal year, period, and contract closeout activities, including preparation, submission, and tracking of contract closeout requests.
- Performed government and commercial billing in compliance with contract terms, FAR, DFARS, and internal policies.
- Reviewed/Ran monthly government and commercial billing processes according to company guidelines utilizing financial reports to ensure compliance with deliverable deadlines for federal government contracts types.
- Prepared, analyzed, and reconciled billed and unbilled receivables, unapplied cash and billing discrepancies
- Resolved issues that arise due to unique, contractual billing requirements, project adjustments or system issues to ensure accurate invoicing.
- Utilized ERP and CRM systems to manage billing, A/R, and project financial data.
- Prepare daily audits to ensure integrity and fulfillment of contract.
- Maintained strict confidentiality with all personal data as per company guidelines.
- Coordinated collections and follow-ups with government agencies, commercial customers, prime contractors, and internal stakeholders.
- Developed and maintained billing and closeout metrics, tracking unbilled AR, unapplied cash, invoice status, aging trends, and DSO.
- Supported month-end, quarter-end, and fiscal year-end close, including A/R reconciliations, accruals, journal entries, and variance analysis.
- Maintained audit-ready documentation and supported DCAA, internal, and external audits
- Partnered with Contracts, Project Management, Accounting, and Finance to ensure billing accuracy, compliance, and timely cash collection.
Project Accountant II
CNA Analysis & Solutions
Arlington, VA
09.2018 - 01.2019
- Supported fiscal year, period, and contract closeout activities, including preparation, submission, and tracking of contract closeout requests, final invoices and closeout documents for defense contracts using DCAA audited rates.
- Managed contract closeouts, including preparation of final invoices, closeout packages, and supporting documentation.
- Performed government and commercial billing in compliance with FAR, DFARS, DCAA requirements, and contract terms.
- Utilized ERP systems to manage project accounting, billing, and accounts receivable functions.
- Reconciled accounts receivable, unbilled receivables, and unapplied cash, resolving discrepancies and system variances.
- Developed cost reconciliation schedules for annually incurred costs, supporting year-end reporting and audit requirements.
- Prepared and reviewed quarterly account and contract financial reports, including variance and trend analysis.
- Performed new contract setups including creation of project numbers, billing structures, revenue recognition methods, and labor categories within ERP systems.
- Interpreted and applied contractual billing requirements, including contract type, billing rates, funding limitations, and deliverable schedules.
- Ensured billing and accounting activities complied with DCAA audit standards, supporting high audit pass rates.
- Maintained audit-ready documentation and supported internal, external, and DCAA audits.
- Partnered with Contracts, Project Management, Finance, and Accounting to resolve billing, cost, and closeout issues.
- Identified and implemented process improvements to enhance billing accuracy, reconciliation efficiency, and closeout timelines.
Government Contract Closeout Analyst
Booz Allen Hamilton, BAH
McLean, VA
05.2018 - 08.2018
- Supported government contract closeout activities for T&M, FFP, and Cost-Plus (CPFF/CPIF) contract types in accordance with FAR, DFARS, and company policies.
- Prepared, reviewed, and submitted contract invoices across defined billing cycles, meeting strict contractual deadlines and productivity targets.
- Reviewed and understood contractual requirements relating to billing for commercial and government contracts.
- Developed comprehensive reports that enhanced operational efficiency for client projects.
- Tracked closeout metrics and productivity measures, supporting continuous process improvement and performance reporting.
- Coordinated with Acquisitions, Billing, Collections, Cash Applications, Program Business Support, and Client Staff to resolve closeout and billing issues.
- Supported month-end and year-end close activities related to contract billing and receivables.
- Performed financial reporting and variance analysis related to billed and unbilled activity.
- Built and maintained strong, effective working relationships with key stakeholders across multiple functional teams such as Acquisitions, Collections, Cash Applications, Client Staff and Program Business support to ensure efficient contract closeout.
- Maintained audit-ready documentation to support internal, external, and DCAA audits.
- Monitored invoice status, aging, and payment activity, escalating risks to ensure timely resolution.
- Ensured billing accuracy and compliance with contract terms, CLIN structures, funding ceilings, and rate limitations.
- Investigated and resolved billing discrepancies, system issues, and contract adjustments impacting closeout timelines.
- Performed financial reporting and variance analysis related to billed and unbilled activity.
Accounts Receivable Billing Analyst
ASRC Federal
Beltsville, MD
01.2018 - 05.2018
- Prepared, reviewed, and submitted complex invoices for federal government contract billing types, including CPFF, CPAF, CPIF, T&M, and FFP, adhering to CLIN/SLIN/ACRN structures.
- Utilized ERP systems to manage invoice submission, billing, accounts receivable, and project financial data.
- Investigated and resolved complex invoicing issues arising from unique contractual billing requirements, project adjustments, or system variances.
- Partnered with Project Management, Controls, Contracts, and Accounts Payable to resolve billing discrepancies and ensure compliance with contract terms.
- Maintained audit-ready documentation to support DCAA, internal, and external audits.
- Acted as a key cross-functional team member, supporting process improvements to increase billing accuracy, revenue recognition, and collections efficiency.
- Monitored and supported billing cycles, ensuring invoices were processed accurately and timely.
- Built and maintained working cross-functional team relationships to provide expertise and assistance on invoicing matters.
- Analyzed and reconciled unbilled receivables, unapplied cash, and open A/R balances to support accurate financial reporting and collections.
- Provided financial analysis and reporting to track invoice status, unbilled receivables, and A/R metrics.
- Contributed to reducing overall billing cycle times, enhancing cash collections and lowering Days Sales Outstanding (DSO).
Government Contract Billing Analyst
OpenText
Arlington, VA
09.2015 - 01.2018
- Located, reviewed, and researched domestic and international third-party contracts, identifying key terms, clauses, and billing-relevant information.
- Updated and maintained meta-data within contract management systems (CMS) to ensure accuracy, consistency, and audit readiness.
- Utilized ERP and CRM systems to reconcile contracts with billing accounts for compliance and financial reporting.
- Classified contracts based on type, billing structures, and contractual content, supporting consistent internal processes.
- Reconciled historic agreements against billing accounts and contracts to ensure accuracy and audit compliance.
- Prepared metric and KPI reporting for senior management on contract status, billing compliance, and revenue recognition.
- Assisted in training new contract analysts on contract review processes, CMS usage, and ERP and CRM billing workflows.
- Researched and responded to service tickets submitted by contract specialists, both local and remote, resolving inquiries related to contract interpretation, billing, or system discrepancies.
- Collaborated cross-functionally with Contracts, Finance, Project Management, and Billing teams to ensure accurate invoicing, compliance, and timely revenue recognition.
- Supported new contract documentation processes, including setup of billing, revenue recognition, and project structures within ERP and CRM systems.
- Maintained audit-ready documentation to support internal, external, and DCAA audits.
- Identified and implemented process improvements to enhance contract billing accuracy, reduce discrepancies, and streamline contract management workflows.
Collections Specialist II
OnDeck Capital
Arlington, VA
04.2013 - 09.2015
- Utilized ERP and CRM systems to research, access, analyze, and update account and transaction data as well as historical account data to evaluate prior collection efforts and determine optimal strategies for delinquent accounts.
- Initiated debtor contact via Five9 dialer, phone, and email to resolve past-due accounts while maintaining compliance with company policy and regulations.
- Assessed credit risks and financial viability of existing and prospective clients, providing recommendations to management on collections strategy.
- Monitored and tracked merchant accounts to ensure accuracy of payments, applied cash, and reconciled discrepancies.
- Negotiated temporary payment arrangements with delinquent merchants experiencing hardship to maximize recovery while preserving client relationships.
- Determined and executed economical and effective means of collection based on account history, payment trends, and risk assessment.
- Maintained audit-ready documentation of all collections activity, payment arrangements, and account communications.
- Generated and reported collections metrics and KPIs, including delinquency rates, recovery percentages, and Days Sales Outstanding (DSO).
- Recommended and implemented process improvements to enhance collections efficiency, reduce write-offs, and improve cash flow.
Accounts Receivable Collections Specialist II
CACI International Inc
Arlington, VA
07.2006 - 04.2013
- Prepared and analyzed monthly aging reports, identifying past-due accounts and prioritizing collection efforts.
- Reviewed and analyzed time card projects to ensure accuracy in billing, reporting and revenue recognition utilizing ERP and financial systems.
- Generated metric and KPI reporting for the Director of Finance, tracking collections performance and outstanding invoices to identify and implement process improvements to reduce billing errors, aging accounts, and DSO.
- Collaborated with Project Managers, Contract Managers, Vehicle Managers, and Customer Support Managers (CSMs) to resolve account discrepancies and coordinate collections activities.
- Supported month-end closing activities, including invoice submission, revenue recognition, collections, and allocation of payments for commercial, third-party, and government client.
- Processed journal entries and adjustments in the general ledger to ensure A/R and revenue accuracy.
- Coordinated collection calls with internal stakeholders and organized client visits to recover outstanding receivables.
- Researched, analyzed, and resolved payment discrepancies, unapplied cash, and disputed invoices.
- Maintained audit-ready documentation and ensured compliance with FAR, DFARS, and internal controls.
- Delivered exceptional customer service on collection calls and maintained calm and professional demeanor.
- Trained new team members on scripts, company services, and collection strategies.
Accounting Assistant
CACI International Inc
Arlington, VA
05.2004 - 07.2006
- Reviewed, verified, and processed accounts payable transactions, including investigator vouchers, third-party client invoices, and petty cash.
- Reconciled monthly financial statements, including A/P sub-ledgers, general ledger accounts, and cash activity.
- Identified and resolved transaction discrepancies, ensuring accurate and timely processing of payments
- Maintained audit-ready documentation for internal and external financial reviews.
- Utilized CRM and ERP systems to track transactions, update accounts, and support reporting.
- Collaborated with project managers, finance, and contracts teams to resolve invoice issues and ensure compliance with company policies.
- Assisted with month-end and year-end closing activities, including journal entries, accruals, and account reconciliations.
- Supported process improvements to enhance transaction accuracy, streamline workflows, and reduce AP processing errors.
- Reduced errors in account reconciliation through meticulous attention to detail and thorough review of transactions.
- Corresponded with internal and third-party agencies as needed in resolving sensitive issues.
Education
Pursuing Degree - Forensic Accounting
UMGC
College Park, MD06-2030
Diploma -
Northwestern Senior High
Adelphi, MD06-1995
Skills
- Data Analysis & Research
- Billing Cycle Management
- Interpersonal
- Aging Analysis
- GAAP
- Collections Support
- High-Volume Invoicing
- Account Reconciliation
- Customer Billing Inquiries
- Project-Based Billing
- Cost-Plus
- Fixed-Price & Time-and-Materials Billing
- Project & Contract Close-Out Support
- Terms & Compliance Monitoring
- Revenue Accruals & Recognition
- Cost-Reimbursable & Fixed-Price Government Contracts
- Final Invoice Generation/Submission/Review
- DCAA Audit Support & Procedures
- Government Billing & Invoicing
- Tax compliance
- Payment posting
- Complex problem-solving & resolution
- Attention to detail
- Multitasking and organization
- Analytical thinking
- Account reconciliation
- Financial & Fiscal reporting
- Month-end closing procedures
- Contract preparation
- Collection practices
- Time management
- Process Improvement & Automation Support
- Multitasking Abilities
- Bank reconciliation
- Payment processing
- Expense tracking
- Credit control
- Risk assessment
- General ledger management
- Invoice balancing
- ERP/CRM systems proficiency
- Budget analysis
- Full-cycle accounting
- A/P and A/R
Languages
English
Native or Bilingual
Timeline
Accounts Receivable Billing Analyst II
Cybercore Technologies
03.2021 - 01.2026
Project Billing Accountant
Pacific and Architect Engineers (PAE)
10.2019 - 03.2021
Contract and Project Billing Analyst
Gryphon Technologies
01.2019 - 10.2019
Project Accountant II
CNA Analysis & Solutions
09.2018 - 01.2019
Government Contract Closeout Analyst
Booz Allen Hamilton, BAH
05.2018 - 08.2018
Accounts Receivable Billing Analyst
ASRC Federal
01.2018 - 05.2018
Government Contract Billing Analyst
OpenText
09.2015 - 01.2018
Collections Specialist II
OnDeck Capital
04.2013 - 09.2015
Accounts Receivable Collections Specialist II
CACI International Inc
07.2006 - 04.2013
Accounting Assistant
CACI International Inc
05.2004 - 07.2006
Pursuing Degree - Forensic Accounting
UMGC
Diploma -
Northwestern Senior High
ERP / CRM Systems
Cognos
Booz Allen Hamilton iOL System
Deltek Costpoint 7.1.1 / 8.1
QlikView-Access Point
Unanet SLICS/SLATE
Microsoft Office Suite
iRAPT (formerly WAWF)
IPP (formerly WiNS)
Oracle Siebel Call Center Repository 8.1
Oracle E-Business Suite (I-Receivables 2.0)
SharePoint Contracts Resources
Salesforce
Calico Servicing Console
Five9 Dialer
Lotus Notes 7 / Lotus Notes 1-2-3
A/R Application CARITS (CACI Accounts Receivable Invoice Tracking System)